Struct MultiTileDispatcher 

pub struct MultiTileDispatcher {
    pub sub_devices: Vec<SubDeviceInfo>,
    pub config: MultiTileConfig,
}

Enumerates Level Zero sub-devices and partitions matrix work across tiles.

On devices without sub-devices (single-tile GPUs), the dispatcher degrades gracefully to single-device behaviour — callers do not need to special-case this.

Fields

sub_devices: Vec<SubDeviceInfo>

Discovered sub-devices. Empty means single-device fallback.

config: MultiTileConfig

Active configuration.

Implementations

impl MultiTileDispatcher

pub fn new(sub_devices: Vec<SubDeviceInfo>, config: MultiTileConfig) -> Self

Construct a dispatcher with pre-discovered sub-device information.

Typically called by the backend after enumerating the Level Zero device tree. Pass an empty sub_devices vec for single-tile GPUs.

pub fn single_device() -> Self

Construct a single-device dispatcher (no sub-device enumeration).

pub fn tile_count(&self) -> usize

Return how many tiles are available for dispatch.

Returns 1 when no sub-devices were discovered (single-tile path).

pub fn should_use_multi_tile(&self, m: usize) -> bool

Return true when multi-tile dispatch should be used for a problem of size m (number of output matrix rows).

pub fn partition(&self, m: usize) -> Vec<TileWorkSlice>

Partition m rows across available tiles according to the configured WorkDistribution strategy.

Returns a Vec<TileWorkSlice> with one entry per active tile. The slices are non-overlapping and together cover the full [0, m) range.

If there are no sub-devices or m == 0, returns a single slice for tile 0 covering the entire row range.

pub fn from_synthetic(names: &[&str]) -> Self

Simulate sub-device enumeration from a list of synthetic device names.

This is useful for unit tests that cannot call into Level Zero hardware.

Trait Implementations

impl Debug for MultiTileDispatcher

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for MultiTileDispatcher

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.